Preparation method of magnetic ferrite
A technology of ferrite and iron powder, which is applied in the field of ferrite preparation, can solve the problems of large energy consumption, many equipment requirements, and many processing procedures, and achieve the effects of reducing processing difficulty, improving quality, and reducing strength
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preparation example Construction
[0033] The invention provides a technical solution: a method for preparing ferrite, comprising the following steps:
[0034] (1) Ingredients: Ingredients are prepared according to the following parts by weight: 550-600 parts of iron powder, 160-170 parts of iron oxide powder, 150-160 parts of strontium carbonate powder, 120-130 parts of sodium perchlorate, 600 parts of carbon powder -700 parts, 72-78 parts of aluminum powder;
[0035] (2) Mixing: Put the ingredients into the ball mill for coarse grinding, the coarse grinding time is controlled at 5h, the powder particle size is controlled at 2-5μm, after the coarse grinding, heat and dry, the drying temperature is controlled at 55-60°C, and the The drying time is controlled to 1h;
[0036] (3) Mixed combustion: put the raw material powder after drying into the crucible, disperse and feed pure oxygen into the raw material, and the ventilation rate is greater than or equal to 3L / min; ignite the carbon powder until the combustio...
Embodiment 1
[0051] A preparation method of ferrite, comprising the following steps:
[0052] (1) Batching: batching is carried out according to the following raw materials in parts by weight: 550 parts of iron powder, 160 parts of iron oxide powder, 150 parts of strontium carbonate powder, 120 parts of sodium perchlorate, 650 parts of carbon powder, 78 parts of aluminum powder;
[0053] (2) Mixing: Put the ingredients into the ball mill for coarse grinding, the coarse grinding time is controlled at 5h, the powder particle size is controlled at 3μm, after the coarse grinding, heat and dry, the drying temperature is controlled at 55°C, and the drying time is controlled at 1h;
[0054] (3) Mixed combustion: Put the dried raw material powder into the crucible, disperse and feed pure oxygen gas into the raw material, and the ventilation rate is 5L / min; ignite the carbon powder until the combustion heat is completely released;
[0055] (4) Water washing: after the raw material is cooled to roo...
Embodiment 2
[0061] It is basically the same as Example 1, the difference is:
[0062] (1) Batching: batching is carried out according to the following raw materials in parts by weight: 560 parts of iron powder, 160 parts of iron oxide powder, 150 parts of strontium carbonate powder, 120 parts of sodium perchlorate, 642 parts of carbon powder, 76 parts of aluminum powder;
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